Who's truck has a parking brake, who has an emergency break?

One reason for most drivers not to try using an emergency brake is because on many automobiles, they can actually lock up the rear wheels, putting the vehicle into an uncontrollable skid. Very few drivers now have any idea how to handle such a situation. Especially so the ones that have a ratchet type activation that cannot be released quickly. With the lever type between the seats, you can bring a car to a controlled stop without locking it up.